Engine



FIG. 1 is a perspective view of the top, front and left side of anengine showing our new design;

FIG. 2 is a perspective view of the top, rear and right side thereof;

FIG. 3 is front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom view thereof.

The portion of the article in broken lines are shown for illustrativepurposes only and form no part of the claimed design.

The ornamental design for an engine, as shown and described.